FALLS, Pa. — A 55-year-old Middletown, Pa. man shot himself to death following what was close to a four-hour standoff with police inside of a sporting goods store, Lt. Henry Ward said.

Police responded to the Dick’s Sporting Goods store on Commerce Boulevard, just off Oxford Valley Road, at around 7 p.m. Saturday, Ward said. Upon seeing the armed man, police evacuated surrounding stores and deployed SWAT units to the location.

At one point, a police officer entered the store to confront the suspect, who had been roaming about the aisles. At that time, Ward said, the suspect fled to the restroom and barricaded himself inside.

For more than three hours, police tried to make contact with the man, eventually sending in a SWAT robot to clear the scene. The robot caught glimpse of the man lying on the ground, and officers who then entered the store found the man dead, with a single gunshot wound to the chest.

No one besides the suspect was injured, Ward said, and so police are treating the incident as a suicide case and have not released the man’s name.

However, Ward said in 2002 the same man was involved in a standoff with Middletown police, which was successfully resolved, and that in 2008 he was involuntarily committed for mental health evaluation.